Wire-stranding machine.



4 SHEETS-SHEET 1.

Patented Sept V fw, WM

e. -Mn

W. 0. LARMUTH.

WIRE VSTRANDINGf MACHINE. APPLICATION 'FILED 00115, 1910.

W. 0. LARMUTH.

WIRE STRANDING MACHINE.

APPLICATION FILED 06T. 15, 1910.

Patented Sept. 9, 1913.

4 SEEE S-SHEET 2.

W. 0. LARMUTH. WIRE STRANDING MACHINE. APPLICATION FILED 00115, 1910.

1,073,052. Patented sept. 9, 191s.

4 SHEETS-SHEET 3.

W. 0. LARMUTH. WIRE STRANDING MAGHINE.

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Specification of Letters Patent. Anneau@ mea owner 15, ma. sum No. 581,158.

ratenteasepcc, 191e.

.wire strands, wire cords, wire ropes, wire cables and the like, in which the single threads of wire or strandsof wire are drawn from separate bobbins carried in cradles or cages suitably supported in revolvingdlsks,

the threads or strands of wire being thereby Atwisted into one strand, cord or rope. This is then drawnthrough a die by means of e hauling oit pulley or ccpstonA and wound on e receiving drum or bobbin.

The object of my invention is to construct a machine which, unlike the older type of machine used for the purpose, can be worked at a high rute of speed, and which will thus economize time and labor.

In the accompanying drawings, Figure l is a. side view partly in section of one end of a wirestranding or twisting machine constructed according to this invention; Fig. 2 is a similar View of the other end' of the same machine; Fig. 3 is an outline view of e complete machine; Fig. 43. is a. lan of the hauling oli pulley or drawing o' gear; Fig. 5 is :in end view of the gear box; Fig. 6 is a plan of one of the cradles or cages with n bobbin, any number of which can he ecmployed in said machine; Fig. 7 shows a modified form of bobbin drag; Fig. 8 is a. transverse section. on the line A. A. Fig. 3;, Fig. 9 is a. vertical section of the tube support; Fig. 10 is e. side view showing the pulleys, strep shifting gear and brake attachment, forming part of my invention; Fig. 11 is' c transverse section taken on the line B. B. Fig. 1, showing the brake attach-- ment; Fig. 12 is a. transverse section showing the plungers, levers and attachments for the automatic stop motion; Fig, 13 is a. side view showing the automatic stop motion rod, levers and attachments; Fig. 14 is a plan of the automatic stop motion rod, lever attach-ment and its connection with. the strap fork and brake. lever rods; Figs. 15 to 18 inclusive are views showing details of theautomatic` plungers and. brackets; and Figs. 19 to 21 Inclusive are views showing 'These openings also faci lchine, and when equally "tube in balance. The material ,left between friction, prolonging tube is. beingl revolved -them. `I place a. bobbin c in each of the cradles or cagesf, with its exis below the j'axis of the tube and cradle trunnions, and Seach. bobbin hos a grooved ring c2 on the wire or strand. taut and overrunning when said wire or strand isbeing drawn therefrom. Those cradles.' or coges can also be fitted with small spring plungers as shown. in

the; flanges c of the bo i-.ns c' so es to pro j of the ring @Zand hook e8. By havin exis of each bobbin below the axis cradle trunnion, the amount of friction setz up in the bearings is reduced to a minimum details of the runner-bracket for-the wires -or strands. Y l Accordin x to-and for the purpose of this lnvention, provlde a tube a of wrou ht iron, steel er other suitablematerial, which 1s true in the bore and on the outside surface. This tubehas longitudinal spaces c" formed therein 4 at intervals .of various j lengths, and with two, three or more around.

the periphery, (preferably three which al low the bobbins. to be placed irl. position. itate the threading up of the series of strands throh themaspec y keep the Vthe spaces a enables. the brackets b which 'support the cradles or cages E to be xed. Atherein at regular or irr j apart as reqluired and seid rockets are tted with ba lar distances l bearings for thejournols all of the cradles or cages d, thereby reducing the life of seid cradles or cages. and enabling them to remain permanently in a. floating position while the outside of one et the flanges c for the rece tion ofE. a. cordA that is passed around sand at high speed arouml,

ring. This cord is also connected to 'am i adjustable hook cs and secured 'to the cradle or cage in. such manner as to place e drag or brake on the bobbin 'n order to keep the prevent the bobbin 7, which press on duce the desired brake or drag, in the place i o the and the bobbins serve as balancingl weights to keep the cradles in heating ositions.

. venient angle to and over` the pulley ahn .the inside of the tube c. Between e tho..

plate cradle or cage and the front end of the tube can be and pu leys e, w ich can have one or more guide-ways for supportin the wires in their# course to the end of sai tube where each wire from each bobbin passes through sepaV Under operatmg conditions, the revolution of the'ftube 'a causes the wires to ind around a wire forming the core, whic is drawn either from the front bobbin or fromtherear end of the machine when carried on a bobbin or drum c. The wires thus'assembled are drawnthrough a die g carried in a suitable movable box, by a hauling olf pulley or capstanl y" and wound on a receiving drum or bobbin near the front of themachine. i

If the core is drawn from a druml: at the rear end of the machine, it passes through a hole Z in a sleeve l which is part of the end attached to and carrying the tube a', then around a pulley Z2 and over rollers e tted on the inside of the tube a similar to the rollers-carrying the Wires from the bobbins to the end of the machine, where the wires drawn from the bobbins are wound aroundit as hereinbefore described. The hauling olf pulley or capstan is driven by a pinion g which is keyed on to the head s of the revolving tube a gearing into the Wheel q keyed on to the boss of the pinion g4. Thls pinion gears into the wheel g5 on the shaft g and the latter carries a bevel wheel g7 gearing into either'the wheel g8 or the w eel g according to the direction of the rotation of. the tube, and giving motion to.l change wheels gm, g, Q12 'and g, These operate the wheel g1* gearing into the wheel g1 on the shaft g1 on which is keyed the haulin ofi' pulley or capstan. An indicator is fixe to the shaft g1 to. indica-te the length of the strand, rope or cable made on the machine. In order to insure even and steady running and to support the tube a, I place around the body of the same a number of sets ofl three friction rollers m in bearings m according to the length-of the tube and the number of bobbins employed. Power is transmitted to the machine either through a A ulley n, or when the machine becomes too ong to drive at one end, then through bevel or spur gearing at the back and front ends of the tube a and also if necessary at various points between; In such a case, the driving shaft would be placed at the back of the machine, and equipped with fast and loose pulleys, although the power can alsobe obtained from a direct coupled electric motor.

placed an number of the brackets r.

through corresponding holes 1n the 16), which is .shown asarranged fortwo -wires., -.'I,he-wire A fromeach bobbin passes through a plunger p, fwhfichwhen. the wire is perfect-s 'in the vposition indicated at A@ (Fig. 12), but when wire breaks or the 7 bobbin.;.agives out, the plungerds'gthrown out b Ithe centrifugal forc'e'due thehigh' 'spec "atiwhich the imachine'runsfy When 1. in this outward position, the end pyoffsaid. i

pl er engages fa lever-'t ke ed onjfashaft normal position by-tension vsprings u,l'fu".`

t3 inthe bracket t, thereby allowing 'the' thereto,`and the strap orktolbe movedfrom Y the fast to the loose pulley. Obviously said"vv rod may be caused to disengage or throw out" of service any other -dev1ce'or source of power which might beemployed to work the machinein place of the fast pulley.

When the sto motion comes into action and so throws the motive power out of action, it at the same time applies a brake to the main body of themachine, for when the spring moves the rod 't8 this rod having an inclined' bracket t7 attached, comes into contact with a lever t8 and depresses the same.

-This at the same time pulls the brake strap t which is loose, around the tube a, and s o tightens it. This strap can be adjusted by a screw tlf which is carried in a bracket t1? altltached to one of the main parts of the ma'- c lne.

number of bobbins I may employ in one machine, as this wouldfbe governed by the number of wires or strands, sizes and "strength f I do not vconfine myself to any precise: 100

of the strand, cord, rope or cable reql'rlired.'A 7

For the purpose of manufacturing strands-'r cords, or cables I may emplo machines o like construction placed en to end, and run to ether as-tandem or otherwise. 'i

Having thus described my invention, what f I claim as new and esire tosecure by Let- 110 ters Patent isz- 1. The combination in a 'stranding machine of a supporting frame; a rigidtube rotatably mounted therein and having openings in its body; a series of cradles rotaltably mounted within said tube; a `strandsupplying bobbin in each cradle; and means for causing strands from the bobbins to be twisted together.

chine of a supporting frame; an integral supporting tubular structure rotatably 130 mounted therein and having openings in its body; inwardlyextending radial brackets fixed to the walls of said tubular structure and having bearings; cradles journaled in said bearings; bobbins respectively mounted in the cradles; and means for causing strands from the bobbins to be twisted together.

4. The combination in a stranding machine o a supporting structure; an elongated pipe rotatably carried by said structure and having a number of series of openings in its walls, the openings of each series being of the same size and equally spaced circumferentially of said pipe; cradles rotatably mounted in the pipe; and strand supplying bobbins respectively carried by cradles, with means for causing strands from the bobbins to be twisted together.

5. The combination in a stranding or spinning machine, of a rotatable tube; a series of cradles pivoted within the tube and each having its axis coincident with the axis of the tube; a strand-supply bobbin in each cradle and each having its axis at right an gles and below the axis of the tube; a member having perforations and covering the end of the tube; means for drawing the strands from the bobbins and through the respective perforations; and means for conveying the several strands to receive a twist.

6. The combination in a stranding or spinning machine, of a rotatable tube; a series of cradles pivoted within the tube and each having its axis coincident with the axis of the tube; a strand-supply bobbin pivoted in each cradle; each bobbin having its axis at right angles to and below the axis of the tube; a drag brake on each bobbin;

means for guiding the strands from the bobbins and through the tube; means for converging the strands to be twisted; and means for taking up the twisted strands.

7. The combination in a stranding or spinning machine, of a rotatable tube; a series of cradles pivoted within the tube, each of said cradles having its axis coincident with the axis of the tube; a strand-supply bobbin in each cradle, each of said bobbins having its axis at right angles to and below the axis of the tube; a member having perforations and located adjacent the end of the tube; means for drawing the strands from the bobbins and through the respective perforations;

means for conveying the several strands to receive a twist; and means for automatically stopping the machine when a strand breaks or when any of the spools become empty.

8. The combination in a stranding or spinning machine, of a rotatable support; a series of cradles pivoted within the support, each of said cradles having its axis conicident with the axis of the support; a strandsupply bobbin in each cradle, each of said bobbins having its axis at right angles to and below the axis of the support; a member having perforations and located adjacent the end of the support; means for drawing the strands from the bobbin and through the respective perforations, and means for conveying the several strands to receive a twist.

v In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

WILLIAM OLIVER LARMUTH.

Witnesses: v

THos. Pnnscofrr, HAROLD WALKER. 

